101 lines
2.1 KiB
Rust
101 lines
2.1 KiB
Rust
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// Copyright 2012-2014 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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// A more complex example of numeric extensions
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use std::cmp::{PartialEq, PartialOrd};
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use std::num::NumCast;
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pub trait TypeExt {}
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impl TypeExt for u8 {}
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impl TypeExt for u16 {}
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impl TypeExt for u32 {}
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impl TypeExt for u64 {}
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impl TypeExt for uint {}
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impl TypeExt for i8 {}
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impl TypeExt for i16 {}
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impl TypeExt for i32 {}
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impl TypeExt for i64 {}
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impl TypeExt for int {}
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impl TypeExt for f32 {}
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impl TypeExt for f64 {}
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pub trait NumExt: TypeExt + PartialEq + PartialOrd + NumCast {}
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impl NumExt for u8 {}
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impl NumExt for u16 {}
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impl NumExt for u32 {}
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impl NumExt for u64 {}
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impl NumExt for uint {}
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impl NumExt for i8 {}
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impl NumExt for i16 {}
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impl NumExt for i32 {}
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impl NumExt for i64 {}
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impl NumExt for int {}
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impl NumExt for f32 {}
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impl NumExt for f64 {}
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pub trait UnSignedExt: NumExt {}
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impl UnSignedExt for u8 {}
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impl UnSignedExt for u16 {}
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impl UnSignedExt for u32 {}
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impl UnSignedExt for u64 {}
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impl UnSignedExt for uint {}
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pub trait SignedExt: NumExt {}
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impl SignedExt for i8 {}
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impl SignedExt for i16 {}
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impl SignedExt for i32 {}
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impl SignedExt for i64 {}
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impl SignedExt for int {}
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impl SignedExt for f32 {}
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impl SignedExt for f64 {}
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pub trait IntegerExt: NumExt {}
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impl IntegerExt for u8 {}
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impl IntegerExt for u16 {}
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impl IntegerExt for u32 {}
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impl IntegerExt for u64 {}
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impl IntegerExt for uint {}
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impl IntegerExt for i8 {}
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impl IntegerExt for i16 {}
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impl IntegerExt for i32 {}
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impl IntegerExt for i64 {}
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impl IntegerExt for int {}
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pub trait FloatExt: NumExt {}
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impl FloatExt for f32 {}
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impl FloatExt for f64 {}
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fn test_float_ext<T:FloatExt>(n: T) { println!("{}", n < n) }
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pub fn main() {
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test_float_ext(1f32);
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}
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